Answer:
Total time spent for exercising is 2 hours and 36 minutes or 
Step-by-step explanation:
Given:
Time spent in weight lifting is, 
Time spent in swimming is, 
Time spent in running is, 
Total time spent in all these exercises is equal to the sum of hours spent for each exercise. Therefore,
Total time spent = Time spent for weight lifting + Time spent for swimming + Time spent for running.

Therefore, total time spent for exercising is 2 hours and 36 minutes or 